0.314.1 v0.9.0

high risk

google/comprehensive-rustAug 16, 2026 → Aug 17, 20261 day between releases

What's New

Major architectural overhaul introducing self-contained workflows and strict isolation.

Breaking Changes

  • Claude nodes no longer inherit ambient skills and MCP servers; declare in YAML
  • Included command bodies must resolve and only reference their own workflow

New Features

  • Workflow signatures (inputs, returns, with)
  • `--dry-run` flag for workflow simulation
  • Packaged workflows allow self-contained folders
  • Agent instructions consolidated into AGENTS.md

Improvements

  • Skills and MCP servers are validated at load time to prevent silent failures

Upgrade Notes

Explicitly declare skills and MCP servers in workflow YAML files to maintain functionality. Ensure all included command bodies resolve and reference only the local workflow.

The Two Releases

0.314.1

0.314.1

Aug 16, 2026· 2 months ago

Minimal release notes: "No functional changes- re-release of 0.314.0 for technical reasons."

Full release notes
v0.9.0

Archon CLI v0.9.0

Aug 17, 2026· 2 months ago

This major release introduces significant architectural changes to workflow composition, including self-contained packaging, structured data signatures, and strict isolation for skills and MCP servers.

Full release notes